修改优化流量统计时间段及排序问题

src/main/java/com/nis/web/dao/dashboard/TrafficAppStatisticDao.xml

@@ -18,7 +18,7 @@
  <select id="appChart" resultType="java.util.HashMap">
     SELECT app_type appType, SUM(link_num) count, (SUM(c2s_pkt_num)+SUM(s2c_pkt_num)) pktNum,(SUM(c2s_byte_len)+SUM(s2c_byte_len)) byteLen 
     FROM galaxy.traffic_app_statistic
-	WHERE app_type !=0 and stat_time >= DATE_SUB((SELECT MAX(stat_time) FROM galaxy.traffic_app_statistic WHERE app_type != 0),INTERVAL 5 MINUTE)
+	WHERE app_type !=0 and stat_time = (SELECT MAX(stat_time) FROM galaxy.traffic_app_statistic WHERE app_type != 0)
 	GROUP BY app_type order by count desc limit 0,10
   </select>
 </mapper>